After reading this chapter, you should be able to:

1. Distinguish between nonparametric and parametric tests.

2. Explain how the test statistic is computed for a chi-square test.

3. Calculate the degrees of freedom for the chi-square goodness-of-fit test and locate critical values in the chi-square table.

4. Compute the chi-square goodness-of-fit test and interpret the results.

5. Identify the assumption and the restriction of expected frequency size for the chi-square test.

6. Calculate the degrees of freedom for the chi-square test for independence and locate critical values in the chi-square table.

7. Compute the chi-square test for independence and interpret the results.

8. Compute and interpret effect size for the chi-square test for independence.

9. Summarize the results of a chi-square test in APA format.

10. Compute the chi-square goodness-of-fit test and the chi-square test for independence using SPSS.